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Implement some forms of add.

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--HG--
extra : convert_revision : adbff2e9b9952ec09853cc43d40243e7262410a7
This commit is contained in:
Gabe Black 2007-07-18 16:33:56 -07:00
parent bafb7ee5c1
commit 6c54b654a8
2 changed files with 24 additions and 1 deletions
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2
src/arch/x86/isa/decoder/one_byte_opcodes.isa
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@ -297,7 +297,7 @@
}
//0x3: group1_Ev_Ib();
0x3: decode MODRM_REG {
0x0: add_Ev_Ib();
0x0: Inst::ADD(Ev,Ib);
0x1: or_Ev_Ib();
0x2: adc_Ev_Ib();
0x3: sbb_Ev_Ib();

23
src/arch/x86/isa/insts/arithmetic/add_and_subtract.py
View file

@ -54,6 +54,29 @@
# Authors: Gabe Black
microcode = '''
def macroop ADD_R_I
{
limm t1, imm
add reg, reg, t1
};
def macroop ADD_M_I
{
limm t2, imm
ld t1, ds, [scale, index, base], disp
add t1, t1, t2
st t1, ds, [scale, index, base], disp
};
def macroop ADD_P_I
{
rdip t7
limm t2, imm
ld t1, ds, [scale, index, base], disp
add t1, t1, t2
st t1, ds, [scale, index, base], disp
};
def macroop SUB_R_I
{
limm t1, imm